Within #drum-machine I can see an element with corresponding id=“display”.
When a .drum-pad is triggered, a string describing the associated audio clip is displayed as the inner text of the #display element (each string must be unique).
You have no such #display element.
When I press the trigger key associated with each .drum-pad, the audio clip contained in its child <audio> element should be triggered (e.g. pressing the Q key should trigger the drum pad which contains the string “Q”, pressing the W key should trigger the drum pad which contains the string “W”, etc.).
Log out e.key inside handleKeyPress and run the tests (check the letter casing).
As an aside, the error is unrelated to any of the tests failing.
solo para aclarar, el paso 6 no tiene nada que ver con tener un elemnto con un id ‘display’? Ahi dice que el audio se debe activar segun la tecla correspondiente ¿?